Young layman in the archdiocese of Poznan, Poland, the son of an alcoholic manager of a cosmetics shop who eventually abandoned the family. Jarogniew found the Saleisan oratory and it became a second home. Played piano. He became a pious young man who thought deeply, worked for a thorough understanding of events, and became a natural leader. Martyred in the Nazipersecutions of World War II.